Imagi Studios (TMNT) has revealed new concept artwork for the company’s upcoming CG-animated Gatchaman and Astro Boy on its official website. We’ve reposted the artwork for your viewing below.

TMNT writer/director Kevin Munroe is developing Gatchaman for a release in 2008. The original Gatchaman story revolves around five young superhero ninjas engaged by the International Science Organization to oppose a group of technologically advanced villains, known as Galactor, from trying to take control of the Earth’s natural resources. To do so, the ninjas battle various giant monsters deployed by Galactor to capture rare resources.

The Astro Boy adaptation is coming to theaters in 2009. Astro Boy follows the adventures of a robot created in the image of a child but with extraordinary powers. Lost in a complex future world, Astro Boy must learn to find his place. With the help of his friends, he discovers how to use his powers for good.